is it worth it to build larger FG box?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=50753
Printed Date: May 06, 2025 at 9:58 PM

Topic: is it worth it to build larger FG box?

Posted By: nickvr
Subject: is it worth it to build larger FG box?
Date Posted: February 24, 2005 at 11:03 AM

Hi Hi all. I would like your expert opinion... See attached WinISD picture / graph. I went shopping and basically ended up with a ballpark quote for $170 to build a Fiberglass box. The yellow (sealed) & green (tuned 30Hz) are graphs for new larger FG box and light blue is current box. Do you guys think its worth it to spend the money on building the larger FG box?
Nick

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Nick

Replies:

Posted By: DYohn
Date Posted: February 24, 2005 at 11:10 AM

It depends on what you want. The response curves are very close, however, and look to be within 3db of each other. Your current enclosure with a large response peak at about 65Hz will probably produce more SPL overall, but I prefer the smoother curves of either "new" curve. If you're looking for SQ, the new sealed enclosure will probably sound better and be less boomy. Your current enclosure is probably best for gross perceivable SPL.

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Posted By: nickvr
Date Posted: February 24, 2005 at 11:10 AM

Please try this as the 'uploaded image' seems very small...

https://myalbum.mweb.co.za/uploaded/05544ce1-0a30-4f38-9a57-4ae2f9df2d2e/632089334498118640.html

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Nick

Posted By: the12volt
Date Posted: February 24, 2005 at 11:16 AM

The image was resized, but if you click on it, a new window will open with the full size image.

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Posted By: nickvr
Date Posted: February 24, 2005 at 11:34 AM

Thanks DYohn. Still, do you think $170 for the smoother curve is worth it (is the difference that significant on the ear / skin)? I do listen to wide variety of music and appreciate sound quality

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Nick

Posted By: nickvr
Date Posted: February 24, 2005 at 1:41 PM

I guess with the remote bass boost support on the AMP I could get similar SPLs around 50Hz with new FG box. But I still contemplate if spend is worth it...

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Nick

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